/* 关于页面专用样式 */

/* Hero区域 */
.about-hero {
    height: 40vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--gradient-primary);
    overflow: hidden;
}

.about-hero .hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.about-hero .hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.about-hero .hero-title {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.about-hero .hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 项目愿景 */
.project-vision {
    padding: 100px 0;
    background: var(--secondary-bg);
}

.vision-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 60px;
}

.vision-text h3 {
    color: var(--accent-gold);
    font-size: 1.8rem;
    margin-bottom: 30px;
}

.vision-text p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 25px;
    font-size: 1.1rem;
}

.vision-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 40px;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    background: rgba(26, 31, 46, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.highlight-item:hover {
    border-color: var(--accent-gold);
    transform: translateY(-2px);
}

.highlight-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.highlight-content h4 {
    color: var(--accent-gold);
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.highlight-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.6;
}

.vision-timeline {
    position: relative;
    padding: 20px 0;
}

.timeline-item {
    position: relative;
    padding: 20px 0 20px 60px;
    margin-bottom: 30px;
}

.timeline-item::before {
    content: attr(data-year);
    position: absolute;
    left: 0;
    top: 20px;
    background: var(--accent-gold);
    color: var(--primary-bg);
    padding: 8px 12px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.timeline-dot {
    position: absolute;
    left: 90px;
    top: 30px;
    width: 12px;
    height: 12px;
    background: var(--accent-cyan);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.timeline-content {
    background: rgba(26, 31, 46, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    margin-left: 20px;
    transition: all 0.3s ease;
}

.timeline-content:hover {
    border-color: var(--accent-gold);
    transform: translateX(10px);
}

.timeline-content h4 {
    color: var(--accent-gold);
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* 创新点 */
.innovation-points {
    padding: 100px 0;
    background: var(--primary-bg);
}

.innovation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.innovation-card {
    background: rgba(26, 31, 46, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(10px);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.innovation-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.innovation-card:hover::before {
    transform: scaleX(1);
}

.innovation-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-gold);
    box-shadow: 0 15px 35px rgba(212, 175, 55, 0.2);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.innovation-card h3 {
    color: var(--accent-gold);
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.innovation-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.innovation-details {
    text-align: left;
}

.innovation-details ul {
    list-style: none;
    padding: 0;
}

.innovation-details li {
    color: var(--text-secondary);
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
    font-size: 0.95rem;
}

.innovation-details li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--accent-gold);
    font-size: 0.8rem;
}

/* 社会价值 */
.social-value {
    padding: 100px 0;
    background: var(--secondary-bg);
}

.value-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.value-section {
    background: rgba(26, 31, 46, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.value-section:hover {
    transform: translateY(-5px);
    border-color: var(--accent-gold);
}

.value-section h3 {
    color: var(--accent-gold);
    font-size: 1.4rem;
    margin-bottom: 20px;
    text-align: center;
}

.value-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    text-align: center;
}

.value-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.metric-card {
    background: rgba(26, 31, 46, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(10px);
    text-align: center;
    transition: all 0.3s ease;
}

.metric-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-gold);
}

.metric-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: 10px;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-label {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* 研究团队 */
.research-team {
    padding: 100px 0;
    background: var(--primary-bg);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.team-member {
    background: rgba(26, 31, 46, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(10px);
    display: flex;
    gap: 20px;
    transition: all 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
    border-color: var(--accent-gold);
    box-shadow: 0 15px 35px rgba(212, 175, 55, 0.2);
}

.member-avatar {
    flex-shrink: 0;
}

.avatar-placeholder {
    width: 80px;
    height: 80px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary-bg);
}

.member-info {
    flex: 1;
}

.member-info h3 {
    color: var(--accent-gold);
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.member-title {
    color: var(--accent-cyan);
    font-size: 1rem;
    margin-bottom: 15px;
}

.member-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 15px;
}

.member-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tag {
    background: rgba(212, 175, 55, 0.2);
    border: 1px solid rgba(212, 175, 55, 0.4);
    border-radius: 15px;
    padding: 4px 10px;
    font-size: 0.8rem;
    color: var(--accent-gold);
}

/* 联系方式 */
.contact-section {
    padding: 100px 0;
    background: var(--secondary-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 60px;
}

.contact-info h3,
.contact-form h3 {
    color: var(--accent-gold);
    font-size: 1.5rem;
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 25px;
    padding: 20px;
    background: rgba(26, 31, 46, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.info-item:hover {
    border-color: var(--accent-gold);
    transform: translateX(10px);
}

.info-icon {
    font-size: 1.5rem;
    color: var(--accent-gold);
    flex-shrink: 0;
}

.info-content h4 {
    color: var(--accent-cyan);
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.info-content p {
    color: var(--text-secondary);
    margin: 0;
}

.contact-form {
    background: rgba(26, 31, 46, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background: rgba(10, 14, 26, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 15px rgba(212, 175, 55, 0.2);
}

.submit-btn {
    width: 100%;
    padding: 15px;
    background: var(--gradient-accent);
    color: var(--primary-bg);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(212, 175, 55, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .about-hero .hero-title {
        font-size: 2.5rem;
    }
    
    .vision-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .vision-highlights {
        grid-template-columns: 1fr;
    }
    
    .innovation-grid {
        grid-template-columns: 1fr;
    }
    
    .value-content {
        grid-template-columns: 1fr;
    }
    
    .value-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .team-member {
        flex-direction: column;
        text-align: center;
    }
    
    .member-skills {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .about-hero .hero-title {
        font-size: 2rem;
    }
    
    .about-hero .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .timeline-item {
        padding-left: 40px;
    }
    
    .timeline-item::before {
        padding: 6px 10px;
        font-size: 0.8rem;
    }
    
    .timeline-dot {
        left: 70px;
    }
    
    .timeline-content {
        margin-left: 10px;
    }
    
    .value-metrics {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 20px;
    }
}